<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input
        v-model="listQuery.goodsName"
        clearable
        class="filter-item"
        style="width: 200px;"
        placeholder="请输入商品名称"
      />
      <el-button
        v-permission="['POST /admin/group-buying-rules/list']"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
      >查找</el-button>
      <el-button
        v-permission="['POST /admin/group-buying-rules/create']"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
      >添加</el-button>
      <el-button
        :loading="downloadLoading"
        class="filter-item"
        type="primary"
        icon="el-icon-download"
        @click="handleDownload"
      >导出</el-button>
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column align="center" label="团购规则ID" prop="id" />

      <el-table-column align="center" label="商品ID" prop="goodsId" />

      <el-table-column align="center" min-width="100" label="名称" prop="goodsName" />

      <el-table-column align="center" property="picUrl" label="图片">
        <template slot-scope="scope">
          <img :src="scope.row.picUrl" width="40">
        </template>
      </el-table-column>

      <el-table-column align="center" label="团购优惠" prop="discount" />

      <el-table-column align="center" label="团购要求" prop="discountMember" />

      <el-table-column align="center" label="状态" prop="status">
        <template slot-scope="scope">
          <el-tag
            :type="scope.row.status === 0 ? 'success' : 'error' "
          >{{ statusMap[scope.row.status] }}</el-tag>
        </template>
      </el-table-column>

      <el-table-column align="center" label="结束时间" prop="expireTime" />

      <el-table-column align="center" label="操作" width="200" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            v-permission="['POST /admin/group-buying-rules/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
          >编辑</el-button>
          <el-button
            v-permission="['POST /admin/group-buying-rules/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="dataForm"
        :rules="rules"
        :model="dataForm"
        status-icon
        label-position="left"
        label-width="120px"
        style="width: 400px; margin-left:50px;"
      >
        <el-form-item label="商品名称" prop="goodsName">
          <el-input v-model="dataForm.goodsName" />
        </el-form-item>
        <el-form-item label="团购折扣" prop="discount">
          <el-input v-model="dataForm.discount" />
        </el-form-item>
        <el-form-item label="团购人数要求" prop="discountMember">
          <el-input v-model="dataForm.discountMember" />
        </el-form-item>
        <el-form-item label="过期时间" prop="expireTime">
          <el-date-picker
            v-model="dataForm.expireTime"
            type="datetime"
            placeholder="选择日期"
            value-format="yyyy-MM-dd HH:mm:ss"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button v-if="dialogStatus=='create'" type="primary" @click="createData">确定</el-button>
        <el-button v-else type="primary" @click="updateData">确定</el-button>
      </div>
    </el-dialog>

    <pagination
      v-show="total>0"
      :total="total"
      :current.sync="listQuery.current"
      :size.sync="listQuery.size"
      @pagination="getList"
    />

    <el-tooltip placement="top" content="返回顶部">
      <back-to-top :visibility-height="100" />
    </el-tooltip>
  </div>
</template>

<script>
import {
  createRules,
  editRules,
  listAllRulesByPage,
  deleteRules
} from '@/api/groupon';
import BackToTop from '@/components/BackToTop';
import Pagination from '@/components/Pagination'; // Secondary package based on el-pagination

export default {
  name: 'GrouponRules',
  components: { BackToTop, Pagination },
  data() {
    return {
      list: [],
      total: 0,
      listLoading: true,
      listQuery: {
        current: 1,
        size: 20,
        goodsId: undefined,
        orderBy: 'add_time',
        sort: 'asc',
        status: 0
      },
      downloadLoading: false,
      dataForm: {
        id: undefined,
        goodsId: '',
        goodsName: '',
        discount: '',
        discountMember: '',
        expireTime: undefined
      },
      dialogFormVisible: false,
      dialogStatus: '',
      textMap: {
        update: '编辑',
        create: '创建'
      },
      statusMap: ['正常', '到期下线', '提前下线'],
      rules: {
        goodsId: [{ required: true, message: '商品不能为空', trigger: 'blur' }],
        goodsName: [
          { required: true, message: '商品不能为空', trigger: 'blur' }
        ],
        discount: [
          { required: true, message: '团购折扣不能为空', trigger: 'blur' }
        ],
        discountMember: [
          { required: true, message: '团购人数不能为空', trigger: 'blur' }
        ],
        expireTime: [
          { required: true, message: '过期时间不能为空', trigger: 'blur' }
        ]
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    getList() {
      this.listLoading = true;
      listAllRulesByPage(this.listQuery)
        .then(response => {
          this.list = response.data.data.list;
          this.total = response.data.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    resetForm() {
      this.dataForm = {
        id: undefined,
        goodsId: '',
        goodsName: '',
        discount: '',
        discountMember: '',
        expireTime: undefined
      };
    },
    handleCreate() {
      this.$router.push({
        path: '/promotion/grouponRuleCreate'
      });
      return;
      this.resetForm();
      this.dialogStatus = 'create';
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate();
      });
    },
    createData() {
      this.$refs['dataForm'].validate(valid => {
        if (valid) {
          createRules(this.dataForm)
            .then(response => {
              this.list.unshift(response.data.data);
              this.dialogFormVisible = false;
              this.$notify.success({
                title: '成功',
                message: '创建团购规则成功'
              });
            })
            .catch(response => {
              this.$notify.error({
                title: '失败',
                message: response.data.errmsg
              });
            });
        }
      });
    },
    handleUpdate(row) {
      this.$router.push({
        path: '/promotion/grouponRuleCreate',
        query: { id: row.id }
      });
      return;
      this.dataForm = Object.assign({}, row);
      this.dialogStatus = 'update';
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate();
      });
    },
    updateData() {
      this.$refs['dataForm'].validate(valid => {
        if (valid) {
          editRules(this.dataForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.dataForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.dataForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: '成功',
                message: '更新团购规则成功'
              });
            })
            .catch(response => {
              this.$notify.error({
                title: '失败',
                message: response.data.errmsg
              });
            });
        }
      });
    },
    handleDelete(row) {
      deleteRules(row)
        .then(response => {
          this.$notify.success({
            title: '成功',
            message: '删除团购规则成功'
          });
          const index = this.list.indexOf(row);
          this.list.splice(index, 1);
        })
        .catch(response => {
          this.$notify.error({
            title: '失败',
            message: response.data.errmsg
          });
        });
    },
    handleDownload() {
      this.downloadLoading = true;
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = [
          '商品ID',
          '名称',
          '首页主图',
          '折扣',
          '人数要求',
          '活动开始时间',
          '活动结束时间'
        ];
        const filterVal = [
          'id',
          'name',
          'pic_url',
          'discount',
          'discountMember',
          'addTime',
          'expireTime'
        ];
        excel.export_json_to_excel2(tHeader, this.list, filterVal, '商品信息');
        this.downloadLoading = false;
      });
    }
  }
};
</script>
